package com.dmp.onlinestore.controller;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

/**
 * Servlet Filter implementation class TimerFilter
 */
public class TimerFilter implements Filter {

    /**
     * Default constructor. 
     */
    public TimerFilter() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		// TODO Auto-generated method stub
		// place your code here
		
		//request path
		HttpServletRequest req = (HttpServletRequest) request; 
		//System.out.println("---> req.getServletPath() " + ((HttpServletRequest) request).getServletPath());
		System.out.println("---> " + req.getRemoteHost() + " tried to access " + req.getRequestURL());
	
		//start timer
		long start = System.currentTimeMillis(); 
		
		// pass the request along the filter chain
		chain.doFilter(request, response);
		
		long stop = System.currentTimeMillis();
		long elapsed = stop - start;
		System.out.println("---> doFilter( ) took " + elapsed + " milli seconds!");
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
